Reenforcement for concrete structures



J. H. A. WRISSENBERG.

REENFORCEM ENT FOR CONCRTE STRUCTURES.

, APPLICATION FILED JAN-23,1914- 1,405,654. Patented Feb. 7, 1922.

ah W3 wazmw Cw UNITED STATES PATENT. OFFICE.

REENFORCEMENT FOR CONCRETE STRUCTURES.

Specification of Letters Patent.

Patented Feb. 7, 1922.

. Application filed January 28, 1914. Serial No. 814,963.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. I.., 1313.)

that it may be shaped to adapt it to use in connection with bodies of concrete of varying sizes.

A further object of the invention] is to provide a reenforcement of such constructlon that certain parts may be severed and bent to adaptthe structure to the shape of the concrete mass.

In the drawings Figure 1 is a view in elevation of the reenfor cement before the webs and bars are severed. I 7 i Fig. 2 isa similar view after the webs and bars are severed andbent to the desired shape. 7

Fig. 3 is a section of same on the line "./.=a of Fig. 1. I

Referring to Fig. 1, the numerals 1, 2 and 3 indicate superimposed barsof suitable length, connected by spaced webs 4, arranged at intervals.

The bars 1, 2 and 3 are of bendable metal to so shape the frame to suit the shape of the mass of concrete to be reenforced.

As shown in Fig. 2, the top bar 3 is Severcd at 5, the intermediate bar 2 is severed at 6, and the lower bar 1 is severedat 7.

indicated at 8, but before being bent, the

webs betweenthe points 8, are transversely severed between the respective bars The severed webs form a series of projections 1.0 on the opposite sides of the intermediate bar 2, and similar projections 11 on the adjacent faces of the top and bottom bars 1 and 3. The ends 12 of the top and bottom bars are bent, as at 12, to also engage in the concrete.

By the construction described the reenforcing frame may be bent in various shapes, and the projections and the bent ends of the bars afford anchors for the mass of concrete, with the result that theconstruction is not only reenforced, but also the concrete and frame are chored together.

What I claim is:

A reenforcement for concrete comprising a base bar, atop bar spaced from the base bar, a plurality of intermediate sections of bars between the base and top bars, the

effectually anportions of the intermediate sections of the bars adjacent the top and base bars being 1 connected thereto by spaced apart webs, the intermediate sections of bars having projec tions on opposite faces, and the top and base bars having projections on adjacent'faces, all the bars and projections being in the same plane. 4 r r In testimony whereof I have set hereunto my hand in presence of two witnesses. JULIUS 'I'IEINRICI'I ALBERT WRISSENBERG.

Witnesses: r

FREDERICK HoYnRMANN. VVILHELM STRUP. 

